Alert archive / Wisconsin / Tornado Warnings in 2020

Tornado Warning 13, NWS Milwaukee, WI

November 10, 2020Kenosha County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Nov 10, 2020, 5:10 PM CST for Kenosha County, Wisconsin. It was in force for 20 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Nov 10, 2020, 5:10 PM CST (23:10 UTC)
Expired: Nov 10, 2020, 5:30 PM CST
In force: 20 min
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Kenosha County, WI

The radar

The Milwaukee radar (KMKX), 69 km from the middle of the area, began a volume at 23:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Nov 10, 5:15 PM CST	TSTM WND GST 64	2 Nw Winthrop Harbor, WI
Nov 10, 5:18 PM CST	TSTM WND GST 60	3 N Pleasant Prairie, WI	KENOSHA AIRPORT ASOS REPORTED GUST OF 52 KNOTS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 10, 2:05 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.2 hours before the alert went out and 210 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 499 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: -81 m²/s²
0-3 km storm-relative helicity: 204 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

077 
WFUS53 KMKX 102310
TORMKX
WIC059-102330-
/O.NEW.KMKX.TO.W.0013.201110T2310Z-201110T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Milwaukee/Sullivan WI
510 PM CST Tue Nov 10 2020

The National Weather Service in Milwaukee/Sullivan has issued a

* Tornado Warning for...
  Eastern Kenosha County in southeastern Wisconsin...

* Until 530 PM CST.

* At 509 PM CST, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located over
  Kenosha, moving northeast at 50 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  eastern Kenosha County, including the following locations...
  Somers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 4266 8798 4267 8787 4267 8781 4261 8782
      4259 8781 4252 8781 4249 8780 4250 8799
TIME...MOT...LOC 2309Z 232DEG 44KT 4258 8789 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

WAGNER

1 follow-up statement

933 
WWUS53 KMKX 102323
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
523 PM CST Tue Nov 10 2020

WIC059-102332-
/O.EXP.KMKX.TO.W.0013.000000T0000Z-201110T2330Z/
Kenosha WI-
523 PM CST Tue Nov 10 2020

...THE TORNADO WARNING FOR EASTERN KENOSHA COUNTY WILL EXPIRE AT 530
PM CST...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 800 PM CST for southeastern
Wisconsin.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Milwaukee/Sullivan.

LAT...LON 4266 8798 4267 8787 4267 8781 4261 8782
      4259 8781 4252 8781 4249 8780 4250 8799
TIME...MOT...LOC 2322Z 232DEG 44KT 4267 8773 

$$

WAGNER

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 10, 3:09 AM CST	Wind Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more	25 hr
Nov 10, 2:58 PM CST	Special Weather Statement	MKX	Fond du Lac	62 min
Nov 10, 3:38 PM CST	Severe Thunderstorm Warning	MKX	Rock, Walworth	82 min
Nov 10, 4:16 PM CST	Severe Thunderstorm Warning	MKX	Kenosha, Racine	74 min
Nov 10, 4:17 PM CST	Severe Thunderstorm Warning	MKX	Jefferson, Waukesha	44 min
Nov 10, 4:21 PM CST	Tornado Warning	MKX	Racine, Walworth	24 min
Nov 10, 4:35 PM CST	Severe Thunderstorm Warning	MKX	Milwaukee	38 min
Nov 10, 4:37 PM CST	Special Marine Warning	MKX		113 min
Nov 10, 4:59 PM CST	Special Marine Warning	MKX		61 min

Nearby

Tornado Warnings in Wisconsin, 2020 Every tornado warning in 2020 Tornadoes in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.